/*
 * Copyright 2024 Sasikanth Miriyampalli
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package dev.sasikanth.rss.reader.utils

import kotlinx.coroutines.flow.Flow

inline fun <T1, T2, T3, T4, T5, T6, T7, T8, R> combine(
  flow: Flow<T1>,
  flow2: Flow<T2>,
  flow3: Flow<T3>,
  flow4: Flow<T4>,
  flow5: Flow<T5>,
  flow6: Flow<T6>,
  flow7: Flow<T7>,
  flow8: Flow<T8>,
  crossinline transform: suspend (T1, T2, T3, T4, T5, T6, T7, T8) -> R
): Flow<R> {
  return kotlinx.coroutines.flow.combine(flow, flow2, flow3, flow4, flow5, flow6, flow7, flow8) {
    args: Array<*> ->
    @Suppress("UNCHECKED_CAST")
    transform(
      args[0] as T1,
      args[1] as T2,
      args[2] as T3,
      args[3] as T4,
      args[4] as T5,
      args[5] as T6,
      args[6] as T7,
      args[7] as T8,
    )
  }
}
